Momosita's Sweet Potato Gratin Recipe

Name: Momosita's Sweet Potato Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 large sweet potatoes, sliced 1/8-inch; 3 -4 small russet potatoes, sliced 1/8-inch; 1 medium onion, diced; 4 tablespoons butter; 1 cup heavy cream; 1 cup milk; 4 -5 tablespoons Dijon mustard; 1 ½ teaspoons salt; ½ teaspoon pepper; ¼ teaspoon cayenne pepper; 1 ½ teaspoons thyme; 1 cup panko breadcrumbs; 14-½ teaspoon sage; ¾ cup sharp cheddar cheese, grated

Servings: persons

2 large sweet potatoes, sliced 1/8-inch
3 -4 small russet potatoes, sliced 1/8-inch
1 medium onion, diced
4 tablespoons butter
1 cup heavy cream
1 cup milk
4 -5 tablespoons Dijon mustard
1 ½ teaspoons salt
½ teaspoon pepper
¼ teaspoon cayenne pepper
1 ½ teaspoons thyme
1 cup panko breadcrumbs
14-½ teaspoon sage
¾ cup sharp cheddar cheese, grated

1
["Heat the oven to 400F.", "Melt butter in a medium frying pan over medium-low heat.", "When it foams, add onion.", "Slowly cook until soft and translucent; set aside.", "Cut into potatoes into 1/8"" slices with a mandolin, sharp knife, or food processor with slicer attachment.", "Whisk the cream, milk, mustard, cayenne and thyme in a medium bowl and set aside.", "In a 9x13"" baking dish, layer 1/2 potato slices on the bottom, 1/2 cream mixture, add salt and pepper, 1/2 of the cheese.", "and 1/2 of the onions.", "Repeat, layering the rest of the potato slices, cream mixture, salt and pepper, and the rest of the onions.", "Cover with foil and bake 50 minutes to one hour (the potatoes should be cooked through).", "Sprinkle panko or stuffing mix evenly over gratin.", "Lightly sprinkle sage over the gratin.", "Sprinkle the rest of the cheese over the gratin.", "Bake uncovered, about 10-20 minutes, until golden brown.", "Let it sit for 10 minutes or until the cream sauce thickens."]

694

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 14 ingredients. The key ingredients include: 2 large sweet potatoes, sliced 1/8-inch, 3 -4 small russet potatoes, sliced 1/8-inch, 1 medium onion, diced, 4 tablespoons butter, and more.

Yes, Momosita's Sweet Potato Gratin falls under the General category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Momosita's Sweet Potato Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions